Safety Instructions - ABB DCS 500B Service Manual

Attention
Overview
Warnings
DCS 500 / DCS 600 Service Manual
The manual Safety and operating instructions for drive converters
(3ADW 000 033) has to be followed strictly.
This chapter contains safety instructions which must be complied
with during installation, operation and maintenance of the power
converters series DCS 500B or DCS 600. If these instructions are
not complied with, this may result in injuries (perhaps even with fa-
tal) or in damage to the power converter, the motor and the driven
machine. Before starting with any work whatsoever at or with this
unit, you must read the information given in this chapter.
Warnings provide information on states which if the specified pro-
cedure for the state concerned is not meticulously complied with
may result in a serious error, in major damage to the unit, in injury
to persons and even in death.
They are identified by the following symbols:
Danger: High Voltage! This symbol warns you of
high voltages which may result in injuries to persons
and/or damage to equipment. Where appropriate, the
text printed adjacent to this symbol describes how
risks of this kind may be avoided.
● All electrical installation and maintenance work on the thyristor
power converter must be carried out by properly qualified staff
who have been thoroughly trained in electrical engineering.
● The thyristor power converter and its adjacent units must be
properly earthed by qualified professionals.
● You must NEVER perform any work on the thyristor power con-
verter while it is still switched on. First switch the unit off, use a
measuring instrument to make absolutely sure that the power
converter has really been de-energized, and only then you may
start with the work concerned.
● Due to external control circuits, there may be dangerously high
voltages present at the thyristor power converter even after the
line voltage has been switched off. So always work at the unit
with appropriate caution! Non-compliance with these instructions
may result in injury (or even death!).
3ADW000093R0701_DCS500B/DCS600_Service manual_e_g

Safety Instructions

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